Metal weather stripping



Aug. 1, 1939. F. w. KAMMERER METAL WEATHER STRIPPING Filed March 18, 1957 2 Sheets-Sheet 1 I I I]: We 4% Q '36 m 12 I 1 I E 11 1 Q z4 zit I g 62 J W A x O ifi 5- Q 5 z I 7 4% 15 L 2% i Q 24 X a i 0 i Fred mffanmwrer g- 1, 1939- F. w. KAMMERER 2,167,656

METAL WEATHER STRI PP ING Filed March 18, 1937 2 Sheets-Sheet 2 I J I 7,

/ 6 Maw/ -Fred Wflammer'er Patented Aug. 1, 1939 UNITED STATES PATENT OFFiCE 10 Claims.

This invention relates to metallic weatherstripping for doors and windows.

It is an object of the invention to provide strong, relatively heavy, durable, non-flexible weather-stripping which may be installed on doors and windows with unusual ease, and without altering the conventional constructions of the doors or windows. It is a primary object of the invention, therefore, to provide weatherstripping of this character which can be installed without the use of special tools and without the exercise of a high degree of skill. In accordance with the invention, the weatherstripping may be applied to the adjacent faces of the window sash or door and its frame, without cutting away portions of the closure or frame, and without forming rabbetted edges in the closure.

Instead of using resilient, sheet bronze or the like, the invention contemplates the use of more rigid sections, preferably formed by an extruding process.

It is a further object of the invention to provide relatively rigid weather-stripping sections which are mounted for relative movement with respect to each other, and which may be provided with cushioning material to make a lightproof and weatherproof joint.

In the accompanying drawings, an illustrative embodiment of the invention is disclosed, in which,

Figure 1 is a fragmentary elevation of double hung, vertically sliding windows having weatherstripping in accordance with the invention applied thereto.

Figure 2 is a vertical section on line 22 of Figure 1.

Figure 3 is a vertical section through the meeting rails, taken on line 33 of Figure 1.

Figure 4 is a vertical section through the sill of Figure 1, taken on line 4-4.

Figure 5 is a horizontal section taken through the side rail and side frame of Figure 1, on line 5-5.

Figure 6 is a horizontal sectional view of a swinging door showing the manner of applying the weather-strip to the vertical edges of the door and frame.

Figure 7 is a vertical sectional View showing the construction at the top of the door.

Figure 8 is a view corresponding to the right hand portion of Figure 6, showing a modified form of weather-strip.

Referring to Figures 1 and 2, double hung windows H], II are shown mounted for vertical movement in vertical slideways l2, I3. The lower Window ll comprises a top rail I4, a bottom rail l5 and side rails it. The side rails slide in the slideway I3 formed in the window frame uprights ii. The bottom edge of the window opening is defined by a conventional sill l8, and the upper edge by a head frame I9, 20.

The weather-stripping of the present invention comprises cooperating metallic sections adapted to be secured to the adjacent faces of the window sash rails and the frame-work in which the sashes slide. One of the sections 24 comprises a base portion 25 which is preferably provided, on its under surface, with longitudinally extending depressions or recesses 26, either or both of which have disposed therein, resilient packing strips 21 of any suitable material, such as felt, sponge rubber, or the likev The section 24 also includes a flange 28, projecting from the base and curved around so that its major portion lies parallel to the plane of the base, thereby providing a groove 29. The inner end or bottom of the groove is preferably provided with a packing 35 of sponge rubber or the like. As shown in Figure 5, the section 24 may be secured to the vertical face of the side rail [6, adjacent the edge thereof, by wood screws 3! or the like.

The other cooperating section 32 of the weather-strip comprises a base portion 33 having a longitudinally extending recess 34 or the like on its under surface. This recess may conveniently be filled with an appropriate packing material 35, such as felt or sponge rubber, as previously described.

The section 32 also includes an upstanding flange 36, adapted to project into the groove 29 of the section 24. This flange 36 terminates in a smooth, rounded, beaded edge 33 which is disposed in the enlarged portion of the groove 29, in sealing contact with the cushioning material 33 disposed therein.

It will be understood that, when the parts are secured to the side rails and the side members of the framework, as shown in Figure 5, the sections 25 and 32 will have relative sliding movement when the Window II is raised and lowered. A weathertight joint is provided, however, by reason of the interlocking relationship between the groove 29 and the flange 36. The weathertight joint is also enhanced by the packing 30, disposed in the groove 29 and by the packing which underlies each section.

A substantially identical construction is used to provide a weathertight joint between the bottom rail of the window and the window sill. The

section 24 is applied to the face of the bottom rail of the sash with the groove 29 therein facing downwardly. The section 32 is secured to the sill i8 adjacent the edge thereof, with the flange 36 projected upwardly, in position to be received within and embraced by the groove 29. In this relationship, there is no relative longitudinal sliding movement between the sections, as the window is opened and closed. On the other hand, the relative movement is in a transverse direction, because the section 24 moves upwardly away from the section 32 when the window is opened.

For the top rail of the upper sash I0, substantially the same construction is used. The section 32 is secured to the window head, on the outside of the window frame, as is shown in Figure 2. The section 24 is secured to the vertical outer face of the top rail of the sash, with the groove 29 facing upwardly, to embrace the downwardly projecting flange 36 of section 32. This is substantially the reverse of the relation of parts shown in Figure 4.

The weather-stripping for the sides of the upper sash I0 is disposed preferably on the outer side of the sash, as shown in Figure 2. Secured to the outer portion of the frame I1 is a vertically extending section 32, similar to the section 32 previously described. The vertical side rails of the upper sash carry weather-strip sections 24' cooperating with the sections 32' for relative sliding movement, in substantially the same manner as is shown in Figure 5.

The meeting rails of the double hung windows are made weathertight by a slightly modified form of section, corresponding to section 24.

As shown in Figure 3, the meeting rail I 4 of the lower sash ll carries an extruded metal weather-strip section 40 comprising a base portion 4| provided on its under surface with a longitudinal recess 42, appropriately packed as aforesaid. Projecting upwardly from the base 4| is a flange 43 which is curved in substantially inverted U-shape as at 44 to provide a groove or channel 55. The outer leg 5| of the flange is spaced from the opposite leg 43 a distance substantially equal to the spacing between the flange 28 and the base 25 in the section 24, and the inner end of the channel is enlarged as shown in Figure 3 and provided with a suitable packing 30, as previously described. The other section may be identical to the section 32 previously described. The flange 36 projects into the groove 59 for relative transverse movement with respect thereto, and a seal is provided in the same man ner as in the construction shown in Figure 4.

It will thus be seen that the novel weatherstripping of the present invention can be applied to conventional windows without in any way altering the window construction. Thus, it is not necessary to employ a skilled carpenter to make accurate rabbets along the edges of the window rails and to carefully fit weather-stripping therein. With the present invention, it is only necessary to cut the extruded metal sections to proper length and then secure them along the adjacent faces of the sash rails and frames, with simple wood screws or the like. The operation of installing this kind of weather-strip is so simple that it can be performed by the usual home owner, without employing skilled workmen. The weather-stripping is particularly efficient because of the use of the sponge rubber or other packing which is secured deep down in thesealing grooves, where it will not be adversely affected by the weather. In actual practice, the

weather-stripping of this invention has been found to be entirely draftproof and lightproof. Thus, it has particular utility as a means for sealing the doors and windows of photographers dark rooms.

In Figures 6 to 8, the invention is shown as a means for sealing the vertical and top edges of swinging doors. Along the vertical face of the jamb edge of a door 59, there is secured a section 32, with the flange 36 projecting in the direction toward which the door moves to closed position. The vertical face of the door frame 51 is provided with a section 24, with the groove 29 thereof facing the flange 36. Thus, when the door is closed, the flange 36 moves into the groove 29 and the head 33 thereof contacts the cushioning material 30, in substantially the same manner as previously described in connection with Figures 3 and 4. This construction extends up to and along the top edge of the door, as shown in Figure '7. The section 24 shown therein is secured to the head 55 of the door frame. The same construction can be used along the bottom edge of the door and the adjacent door sill.

A slightly modified form of strip is required along the vertical edge of the door and frame, at the hinge side. As shown at the right in Figure 6, the flange 28 of the section 24a is spread outwardly from the base 25a, sufficiently to permit the entrance and exit of the flange 36 of the section 32 when the door is opened and closed. Some such construction is necessary because the section 24a moves toward and from the section 32 by a swinging movement about the axis of the hinge 58.

As an alternative construction, particularly adapted for use along the hinge side of a swinging door or window, the construction shown in Figure 8 is preferred. The section 51 corresponding to sections 24 and 24a is, in this case, made up of two members 58, 59, pivotally connected together at 60. The base member 58 is provided with an outwardly projecting cross-sectionally rounded flange 6! and the flange member 59 has formed therein, a longitudinally extending, complemental groove 52 which embraces the bead 6|. These sections can be assembled by relative endwise movement, but cannot be separated by transverse movement, because of the reentrant crosssectional shape of the groove 62. The member 59, however, is capable of pivoting movement to permit opening and closing of the door.

The dual-element section 51, comprising members 58, 59, is not limited in its use to installations along the hinge sides of swinging doors or windows, because it can be used to advantage in all other positions where the section 24 is shown.

Although the details of construction of the weather-stripping of the present invention are shown in some detail in the accompanying draw ings, and have been described with considerable particularity in the foregoing specification, it must be understood that the drawings and description are illustrative only, and that the invention is not to be limited beyond the scope of the appended claims or their equivalents.

I claim:

1. Weather-stripping for the sides of vertically sliding window sashes comprising a rigid extruded metal section adapted to be secured to the window frame and provided with a longitudinally extending flange projecting toward the adjacent window sash, and a second rigid extruded metal section secured along the side of the sash and having an integral, rigid flange shaped to' provide a groove of greater width than the flange of the first mentioned section and embracing the same loosely to permit free transverse and longitudinal sliding movement with respect thereto, said groove having parallel side walls adjacent the open end thereof and a cross-sectiona11y rounded enlargement at the opposite end, and a body of resilient packing material substantially filling said enlargement forsealing contact with said flange. 1

2. Weatherstripping for the lower horizontal edge of a vertically sliding window sash, comprising a rigid extruded metal section having a base secured along one face of the sash adjacent the lower edge thereof, and a flange projecting from the base on a line spaced between its longitudinal edges and forming with the base, a downwardly opening groove having parallel inner walls, and a second section'secured along the lower edge of the window frame and provided with an upstanding flange of less thickness than the space between said parallel walls and positioned to be received and embraced within the groove in the first section in substantially weatherproof relation by relative transverse movement of the flange and the walls of the groove when the sash is moved to its lowered position.

3. Weather-stripping for the meeting rails of double-hung, vertically-sliding windows, comprising a rigid extruded metal section adapted to be secured to the upper face of the top rail of the lower, upwardly opening sash, said section comprising a base and a flange projecting at right angles from one edge thereof and turned upon itself into U-shape and forming a longitudinally extending groove having substantially plain, parallel, inner walls, and a second section adapted to be secured to the upper face of the lower rail of the upper, downwardly opening sash, the second section comprising a base and an upwardly projecting flange of a thickness less than the space between the parallel walls of the groove on the first section and adapted to be received therein by relative transverse movement of the sections when the sashes are moved to the normal closed position.

4. Metal weather-stripping comprising a rigid extruded metal section adapted to be secured to the vertical face of a door adjacent the hinge side thereof, said section comprising a base portion and an element connected thereto and forming with said base, a longitudinal groove, said connection between said portion and said element comprising a longitudinally extending rib and an interlocking groove formed on the adjacent faces thereof, thereby permitting pivoting movement between the base and element and a second rigid extruded metal section adapted to be secured to the adjacent face of the door frame, said second section comprising a sealing flange projecting into the roove of the first section.

5. Metal Weatherstripping for swinging doors and the like comprising a rigid, extruded metal section adapted to be secured to the vertical face of a door adjacent the hinge edge thereof, said section comprising a base portion provided with a longitudinally extending, outwardly projecting rib having an enlarged head, and a cooperating member having a longitudinally extending, reentrant groove embracing the head of said rib, said member forming with said base, a longitudinal groove facing the adjacent door frame, and a second rigid, extruded metal section adapted to be secured to the adjacent face of the door frame, said section comprising a sealing flange projecting into the groove between the base of the first section and the member pivoted thereto.

6. Metal Weatherstripping for doors or windows, comprising a pair of cooperating sections, one comprising a base formed of a single thickness of rigid, non-bending extruded metal, and a longitudinally extending, extruded metal flange projecting in substantially parallel relation to the base and extending from substantially the longitudinal center line of the base to one edge thereof and forming therewith a longitudinally extending groove, the inner walls of said groove being parallel, the other section of said pair comprising a substantially rigid base and an integral outwardly projecting flange of a thickness less than the space between the parallel walls of said groove and adapted to be received loosely th rebetween for transverse or longitudinal movement with respect thereto, whereby the sections of said pair may be secured respectively to doors or windows and their frames for relative longitudinal or transverse movement with respect to each other.

7. Metal Weatherstripping for doors or windows, comprising a pair of cooperating sections, one comprising a base formed of a single thickness of rigid, non-bending extruded metal, and a longitudinally extending, integral, extruded metal flange projecting outwardly from the base substantially along the longitudinal center line thereof and curved laterally and overlying a portion of the base in fixed, non-bending spaced relation thereto, thereby forming with the base a longitudinally extending groove, the inner walls of said groove beingparallel, the other section comprising a substantially rigid base and a flange projecting integrally from one side edge thereof and adapted to be received loosely between the parallel walls of the groove of the first section, and resilient packing means in the inner end of said groove engaging the flange on the second section in substantially weather-tight relation.

8. Metal Weatherstripping comprising a pair of cooperating sections adapted to be secured respectively on the adjacent faces of a closure and the frame therefor, one section of the pair comprising an elongated, rigid, non-bending base formed of a unitary, single thickness of extruded metal, and a rigid extruded metal flange projecting integrally from said base substantially along a longitudinally central line thereof and being curved laterally and disposed, fixedly and rigidly in substantially parallel relation to the underlying portion of said base and forming therewith a longitudinally extending groove having parallel inner walls, the other section of said pair comprising a rigid extruded metal base and a flange projecting integrally therefrom, said flange being of less thickness than the space between the parallel inner walls of the groove in the first section and being adapted to be received therein for free relative movement longitudinally and transversely with respect thereto, the portion of the base of the first section remote from the flange thereof being adapted for securement to the face of the closure, the base of the second section being adapted for securement to the adjacent surface of the closure frame.

9. Metal Weatherstripping for doors or windows comprising a pair of elongated cooperating sections adapted for relative transverse movement to and from substantially weather-tight relation, one of said sections comprising a base formed of a single thickness of rigid non-bending extruded metal, and a longitudinally extending integral flange projecting from the base and curved laterally and overlying a portion of the base in spaced relation thereto, thereby forming with the base a longitudinally extending groove, the inner walls of said groove being parallel, the other section comprising a substantially rigid base and an integral outwardly projecting flange along one side edge of the base and of a thickness less than the width of the groove in the first section and adapted to be received loosely between the parallel walls thereof, whereby the flange and the walls of the groove may move transversely with respect to each other, and resilient packing means in the inner end of said groove engaging the flange on the second section in substantially weather-tight relation.

10. Metal Weatherstripping comprising a pair of cooperating sections, one comprising a base formed of a single thickness of rigid, non-bending extruded metal having on its undersurface, a plurality of downwardly projecting ribs forming therebetween a shallow channel and on its upper surface a longitudinally extending integral, extruded metal flange projecting outwardly and curved laterally and overlying a portion of the base in fixed, non-bending spaced relation thereto, thereby forming with the base a longitudinally extending groove having parallel inner walls, the other section comprising a substantially rigid base having on its undersurface a plurality of downwardly projecting ribs forming therebetween a shallow channel and on its upper surface a flange projecting integrally from one side edge thereof and adapted to be received loosely between the parallel walls of the longitudinal groove in the first section, resilient packing means in the inner end of said longitudinal groove engaging the flange on the second section in substantially weather-tight relation, and resilient packing means in said shallow channels formed on the undersurfaces of said base members.

FRED W. KAMMERER. 

